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5
3
2
8
4
1
2
3
6
7
4
3
2
9
5
9
1
4
2
2
4
7
8
2025-03-05(Advanced) Puzzles
Tackle difficult Number Place patterns
Apply strategy and logic to advance.
Tips for Solving Sudoku
- Start with squares with fewer numbers: Begin with rows, columns, or blocks that already have more numbers filled; fewer candidates make it easier to solve.
- Pencil marks (notes): For beginners, write possible numbers in small font in empty squares for reference.
- Review: If stuck, check for duplicate numbers or rule violations.
- Basic rule: Do not repeat the same number in the same row, column, or 3x3 block.